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Friday, March 23, 2018

Shortwave Radiogram schedule, March 24-25

@Hal_Fi
in California produced this short video
of the simultaneous decoding of MFSK32 text and an image.

Hello friends,

Most of Europe shifts to summer time on Sunday. The transmission schedule for
Shortwave Radiogram remains at the same UTC times, so the broadcast will be one
hour later by local time for most listeners in Europe. I am not aware of any
frequency changes. However, The Mighty KBC transmission to North America Sunday
0000-0200 UTC (Saturday 8-10 pm EDT) will be on new 5960 kHz starting this
weekend. The usual minute of MFSK32 will be at about 0130 UTC. IBC will also
have some schedule changes (see below).

Last weekend's experiment transmitting MFSK32 text and an image simultaneously
went very well. So well, in fact, we will try it again this weekend. This time,
I will not reduce the amplitude as much as last week. This might improve the
text decode if you are receiving a poor signal. I hope it does not break a
transmitter.

The picture and link at the top of this email illustrate the concept of
concurrent text and image transmission. A very useful news consumption app, for
PCs or for mobile devices, could be MFSK-only, simultaneously decoding text and
images, showing one left and the other right, or one top and the other bottom.
The app could be used on shortwave or any other radio band.

Also this weekend, we will transmit one news item in MFSK64. This is a
faster mode (240 wpm) than our usual MFSK32. The MFSK64 image should exhibit
higher resolution. Both the MFSK64 text and image might be subject to
errors if the signal is less than good. If you are unable to decode the text,
the original RFA story is here.

Here is the lineup for Shortwave Radiogram, program 40, 24-25 March
2018, all in MFSK32 except where noted:

** Image, centered on 2200 Hz, will be transmitted simultaneously with text.
Run two instances of Fldigi, or record the broadcast and decode the image
later. Another image will follow the text on 1500 Hz.
Please send reception reports to radiogram@verizon.net

The Mighty KBC
transmits to Europe Saturdays
at 1500-1600 UTC on 9400 kHz (via Bulgaria), with the minute of MFSK at about
1530 UTC (if you are outside of Europe, listen via websdr.ewi.utwente.nl:8901/ ). And to North America Sundays at 0000-0200 UTC
(Saturday 8-10 pm EDT) on 5960 kHz, via Germany. The minute of MFSK is at about 0130 UTC. Reports to
Eric: themightykbc@gmail.com . See also http://www.kbcradio.eu/ and https://www.facebook.com/TheMightyKbc/.

Italian
Broadcasting Corporation (IBC) For the complete IBC transmission schedule visit http://ibcradio.webs.com/ Five minutes of MFSK32 is at the
end of the 30-minute English-language “Shortwave Panorama,” per the schedule
below:

Italian
Broadcasting Corporation (IBC)

Broadcasts in English with MFSK32 during
the last five minutes of each